Viscera Of The Thoracic Cavity

Front 1

the viscera of the thoracic cavity is made up of what 3 compartments?

Back 1

1. left lateral pulmonary cavity
2. right lateral pulmonary cavity
3. central mediastinal cavity

Front 2

what do the 2 lateral pulmonary cavities contain?

Back 2

1. the lungs
2. visceral pleura: covers surface of the lungs
3. parietal pleura: lines the thoracic cavity

Front 3

what are the 4 parts of the parietal pleura?

Back 3

1. costal part
2. mediastinal part
3. diaphragmatic part
4. cervical pleura

Front 4

what are other names for the costal part of the parietal pleura?

Back 4

-costovertebral
-costal pleura

Front 5

what does the endothoracic fascia separate?

Back 5

the costal part of the parietal pleura from the thoracic wall

Front 6

what is another name for the mediastinal part of the parietal pleura?

Back 6

mediastinal pleura

Front 7

what does the mediastinal part of the parietal pleura cover?

Back 7

the lateral aspects of the mediastinum

Front 8

what is the mediastinal part of the parietal pleura continuous with ant, inf, and sup?

Back 8

1. anteriorly: costal part
2. inferiorly: diaphragmatic part
3. superiorly: cervical pleura

Front 9

what does the diaphragmatic part of the parietal pleura cover?

Back 9

the superior surface of the diaphragm except at the pericardium and costal attachments

Front 10

what attaches the diaphragmatic pleura to the muscular fibers of the diaphragm?

Back 10

phrenicopleural fascia

Front 11

where does the cervical pleura extend superiorly?

Back 11

extends through the superior thoracic aperture into the root of the neck

Front 12

what does the cervical pleura cover?

Back 12

covers the apex of the lungs which lie above the first rib

Front 13

the cervical pleura is a superior continuation of what?

Back 13

the costal pluera and the mediastinal pleura

Front 14

what is between the parietal and visceral pluera of the pulmonary cavities?

Back 14

the intrapleural (pleural) space that is pushed completely together by negative pressure

Front 15

what does the central mediastinal cavity separate and contain?

Back 15

separates the 2 pulmonary cavities and contains all thoracic structures besides the lungs

Front 16

where is one space that the intrapleural space actually exists?

Back 16

the costodiaphragmatic recess
-here the visceral and parietal pleura are not completely pushed together by negative pressure

Front 17

why are the parietal and visceral parts not completely attached to each other at the costodiaphragmatic recess?

Back 17

b/c the lungs do NOT fill the thoracic cavity during complete exhalation

Front 18

what may accumulate in the costodiaphragmatic recess?

Back 18

extrapulmonary fluids
-therefore, it is a good place to get pulmonary fluid samples

Front 19

what is the inferior boundary of the costodiaphragmatic recess?

Back 19

the superior border of the diaphragm
-forms pleural lined 'gutters' which surround the upward convexity of the dia inside the thoracic walls

Front 20

what is the superior boundary of the costodiaphragmatic recess?

Back 20

inferior lung

Front 21

what is the costomediastinal recess?

Back 21

where parietal and visceral parts are not completely attached to each other posterior to the sternum
-where the costal and mediastinal pleura meet

Front 22

what are lines of pleural reflection?

Back 22

where two pluera meet and form a line

Front 23

what is the sternal line?

Back 23

where the costal and mediastinal pleura meet anteriorly
-follows along anterior surface of sternum

Front 24

what is the costal line?

Back 24

where the costal and diaphragmatic pleura meet
-exists all around base of diaphragm

Front 25

what is another name for the costal line?

Back 25

costal reflection

Front 26

what is the vertebral line?

Back 26

where costal and mediastinal pleura meet posteriorly
-follows post aspect of mediastinum

Front 27

where is the visceral pleura and mediastinal part of parietal pleura continuous with each other?

Back 27

at the hilum of the lung
-where pulm A, pulm V, and primary bronchus enter and exit the lung
-therefore, airway and vascular supply passes through both parietal and visceral pleura

Front 28

How many lobes do the lungs have? what divides the lobes of the lungs?

Back 28

-3 right lobes(divided by oblique and horizontal fissures)
-2 left lobes (divided by oblique fissures)

Front 29

Which lung is larger, shorter and wider? Why?

Back 29

the right lung b/c it is pushed up by the diaphragm and diaphragm is pushed up by the liver

Front 30

Where is the cardia notch? why is it there?

Back 30

-anterior border of the left lung (primarily indents the anteroinf portion of the sup lobe)
-this is where the midiastinum (heart) resides and pushes in L lung

Front 31

what is the lingula formed by?What does the lingula do?

Back 31

-the cardiac notch forms the lingula which is a thing process of the sup lobe of L lung
-it moves in and out of the costomediastinal recess during respiration
(as the lung inflates, it moves down; as lung deflates, it moves back up)

Front 32

what is the apex of the lung? what is it covered by?

Back 32

-blunt sup end of lung
-covered by cervical pleura

Front 33

What part of the lung ascends above the level of rib 1?

Back 33

apex

Front 34

What are the 3 surfaces of the lungs?

Back 34

1.costal surface
2.mediastinal surface
3.diaphragmatic surface

Front 35

what is the structure of the costal surface? what pleura is it related to? what is the posterior portion of the costal surface called?

Back 35

-large, smooth, convex
-related to costal pleura
-called vertebral portion of costal surface

Front 36

What surface of the lung is concave because of the mediastinum? what does this surface include?

Back 36

-mediastinal surface
-the hilum

Front 37

which surface is concave? what is different btwn the R and L surfaces and why?
what does this surface form?

Back 37

-diaphragmatic surface
-concavity is deeper in the right lung b/c rt diaphragmatic dome is higher b/c of liver
-forms the base of the lung

Front 38

What is the anterior border of the lungs?

Back 38

costal and mediastinal surfaces meet and overlap heart

Front 39

What is the inferior border of the lungs?

Back 39

diaphragmatic surface of lungs

Front 40

What is the posterior border of the lungs?

Back 40

costal and mediastinal surfaces meet posteriorly

Front 41

what is the hilum?

Back 41

roots of the lungs where lung attaches to rest of body

Front 42

what is superiormost on L hilus?

Back 42

pulmonart art

Front 43

what is anteriormost on hila?

Back 43

superior pulmonary veins

Front 44

what is inferiormost on hila?

Back 44

inferior pulmonary veins

Front 45

what is posteriormost on hila?

Back 45

bronchi with bronchial vessels

Front 46

what is the pleural sleeve? aka?

Back 46

-where visceral and parietal pleura meet medial to hilum
-mesopneumonium

Front 47

does intrapleural space have nn's and BV's?

Back 47

no only intapleural fluid unless there is a problem